Online Random Test

Ques 1 :
Which of the following statements are correct about the C#.NET code snippet given below?

class Sample
{
static int i;
int j;
public void proc1()
{
i = 11;
j = 22;
}
public static void proc2()
{
i = 1;
j = 2;
}
static Sample()
{
i = 0;
j = 0;
}
}

(A) j can be initialized in proc2().

(B) i cannot be initialized in proc1().

(D) proc2() can initialize i as well as j.

Ques 2 :
Feature of a local variable

(A) It must be declared within a method

(B) It represent a class object

(D) It must accept a class

Ques 3 :
Which of the following are NOT true about .NET Framework?
1. It provides a consistent object-oriented programming environment whether
object code is stored and executed locally, executed locally but Internet-
distributed, or executed remotely.
2.It provides a code-execution environment that minimizes software deployment and versioning conflicts.
3.It provides a code-execution environment that promotes safe execution of code, including code created by an
unknown or semi-trusted third party.
4.It provides different programming models for Windows-based applications and Web-based applications.
5.It provides an event driven programming model for building Windows Device Drivers.

(A) 1, 2

(B) 2, 4

(D) 1, 2, 4

Ques 4 :
Which of the following statements is correct about the C#.NET program given below?

namespace PskillsConsoleApplication
{
class Baseclass
{
int i;
public Baseclass(int ii)
{
i = ii;
Console.Write("Base ");
}
}
class Derived : Baseclass
{
public Derived(int ii) : base(ii)
{
Console.Write("Derived ");
}
}
class MyProgram
{
static void Main(string[ ] args)
{
Derived d = new Derived(10);
}
}
}

(A) The program will report an error in the statement base(ii).

(B) The program will work correctly if we replace base(ii) with base.Baseclass(ii).

(D) The program will work correctly only if we implement zero-argument constructors in Baseclass as well as Derived class.

Ques 5 :
Which of the following ways to create an object of the Sample class given below will work correctly?

class Sample
{
int i;
Single j;
double k;
public Sample (int ii, Single jj, double kk)
{
i = ii;
j = jj;
k = kk;
}
}

(A) Sample s3 = new Sample(10, 1.2f, 2.4);

(B) Sample s2 = new Sample(10, 1.2f);

(D) Sample s1 = new Sample(10);

Ques 6 :
Which of the following class cannot be inherited?

(A) Abstract

(B) Sealed

(D) None

Ques 7 :
If a class is using an interface, it must

(A) contain the same methods as the interface

(B) inherit the properties of the interface

(D) all of the above

Ques 8 :
Which of the following jobs are NOT performed by Garbage Collector?

1.Freeing memory on the stack.
2.Avoiding memory leaks.
3.Freeing memory occupied by unreferenced objects.
4.Closing unclosed database collections.
5.Closing unclosed files.

(A) 1, 2, 3

(B) 1, 4, 5

(D) 3, 4

Ques 9 :
Which of the following constitutes the .NET Framework?

1. ASP.NET Applications
2. CLR
3. Framework Class Library
4. WinForm Applications
5. Windows Services

(A) 2, 5

(B) 2, 1

(D) 3, 4

Ques 10 :
Which of the following .NET components can be used to remove unused references from the managed heap?

(A) Class Loader

(B) Garbage Collector

(D) CLR

Ques 11 :
An Event has _____ as default return type

(A) No return type for events

(B) String

(D) Integer

Ques 12 :
Polymorphism?

(A) Polymorphism means multiple forms and different name

(B) Polymorphism means multiple forms but one name

(D) All of the above are true

Ques 13 :
Different ways a method can be overloaded in C#.NET

(A) Different parameter data types

(B) Different order of parameters

(D) All of above

Ques 14 :
If a method is marked as protected internal who can access it?

(A) Classes within the same assembly, and classes derived from the declaring class.

(B) Internal methods can be only be called using reflection.

(D) Classes that are both in the same assembly and derived from the declaring class.

Ques 15 :
An assembly is

(A) declarative syntax of Java

(B) properties of c#

(D) A collection of files that appear to the programmer to be a single DLL or EXE.

Ques 16 :
In data reader, what can be used before read method?

(A) Getvalue

(B) Getstring

(D) None

Ques 17 :
___________________ allow to encapsulate discrete units of functionality and provide a graphical representation of that functionality to the user

(A) object

(B) controls

(D) graphics

Ques 18 :
Two methods with the same name but with different parameters.

(A) Overloading

(B) Multiplexing

(D) Loading

Ques 19 :
How does assembly versioning in .NET prevent DLL Hell?

(A) The runtime checks to see that only one version of an assembly is on the machine at any one time.

(B) The compiler offers compile time checking for backward compatibility.

(D) It doesn.t.

Ques 20 :
Automatic paging is possible in

(A) datareader

(B) dataset

(D) all